Leander k



(N ModeL L K BINGHAM APPARATUS FOR MAKING PRINTERS' ROLLERS.

I No. 419,9 14.

Patented Jan. 21,189()..

///////////////////////////////////////////////l///AA & llmm mm %NikuaGay 572% %WWW UNITED STATES PATENT OFFICE.

LEANDER K. BINGIIAM, OF NEW Y ORK, N. Y.

APPARATUS FOR MAKING PRINTERS ROLLERS.

SPECIFICATION forming part of Letters Patent No. 419914, dated. January21, 1890.

Application filed February 15, 1889. Serial No.,299,951. (No model.)

To all whom 'it may concern:

Be it known that I, LEANDER K. BINGHAM, a citizen of the United Stat-es,residing atNew York, in the County of New York and State of New York,have invented certain new and useful Improvements in Apparatus forMaking Printers Rollers; and I do declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference bein had to the accompanying drawings, and to theletters of reference marked thereon, which form a part of thisspecification.

Figure 1 is a perspective View of one-half of the device, Fig. 2 is avertical dianietric section showing a roller-stock in position. Fig. 3is a section of the removable bottom plate. Figs. 4 and 5 are plan viewsof the roller-stock-supporting spiders.

This invention relates to inprovements in apparatus for making print-ersrollers. In making these rollers eitherasingle-mold tube is used or anumber grouped together. The latter plan is employed where the rollersare of small or medium size, so that a number can be manufactured atonce; but in making large rollers-such as are used in the pressesemployed in printing the large newspapers-it is hardly feasible to usethe grouped molds, and the single-mold tubes are preferable.

It is the object of this invention to so improve the Construction ofthese single-mold tubes as to greatly facilitate the making of therollers and to simplify and shorten the operation of their Construction.

The invention consists in the Construction hereinafter pointed out.

In the annexed drawings, the letter-A indicates an ordinary mold-tubehaving the open top and bottom ends a a'. The bottom end a' has theeXterior threads a surrounding this tube is the concentric jacket B,there beinga space b between the tube and jacket. Enconpassing the tubeA are several diaphragms C, secured to the inner surface of the jacket,these diaphragnshaving the holes c, through which the tube A passes, andthe perforations c'. At the topa cap D is screwed upon the jacket B,said cap having a hole d, through which the upper end a of the tube Aprojects. Around the projecti'g\d a of the tube A are placed the packinge and recessed ring E, the latter fastened to the cap D, and the packingand ring forming a steam and water ti ght joint around the end a, butallowing due movement of the tube A.

Screwed upon the bottom of the jacket B is the base-plate F, having thecircumferential flange f and the central hole f', a little larger thanthe end a' of the tube A, said end extending down within said hole.WVthin this hole and surrounding the tube to which it is screwed is agland G, its exterior flange resting underneath the bottom of thebaseplate F.

Projecting up inside the bottom end a' of the tube A is the circularfiange h of the removable bottom H. This flange h fits snugly againstthe inner surface of the tube, and within the fiange is a circularrabbet ozr seat h'. From this flange h a rim h extends outwardly to theedge of the flange f. In the upper face of this rim, next to the outeredge of the fiange h, is a recess 7 into which snugly fits the lower enda' of tubeA and the outer part of the gland G. From the rim h the bottomH drops, as at 7 being cupshaped, as shown, there being in its lowerface a hole h and to one side an opening h surrounding this bottom l-Iis a traveling ring K, held thereto by an annulus Z, secured to saidbottom. This ring K has a nozzle Ic, with a bore k' in the plane of theopening h The bottom H is held to the base-plate F by clamps orotherwise. The jacket B has'the steam and water inlet M at the bottomand overfiow N at the top and the trunnions O.

WVhen the roller-stock P is put into the mold, it is centered by thespiders 13 p' above and below, the arms 19 of the latter resting on theseat h', and the lower end of the rollerstock protruding through thehole h in the bottom I-I.

The device is turned down and the rollerstock P inserted, the upperspider being -in place on the stock. The renovable bottom H, with thespider p' -in place, is slipped on the end of the stock coming throughthe hole h and is fastened to the base-plate F. This removable bottomthus acts as a bung or stoppen The ring K is turned so as to close theopening h the device is turned into vertical position, and steam is letinto it IOO through the inlet M, the overflow N being open. After themold is sufficiently heated the steam is shut off. The nozzle 70 isconnected to a composition-supply pipe leading from a suitable source ofsupply, and the noz- Zle is turned until the bore 75' registers with theopening h The composition, being nnder due pressure, rises within themold-tube A, surrounding the roller-stock P. As soon as sufficientcomposition has been admitted the nozzle Ic is turned so as to close theopening h Water is then let in through the inlet M, the overflow N beingopen. The water rises, fills the jacket B around the tube A, and passesout through the overfiow N. A constant current of Water is thusmaintained through the device, which quickly cools and sets thecomposition. As soon as the roller is formed the Water is let out at M,the stopper or bottom removed, and the completed roller withdrawn fromthe mold.

In an application of even date herewith, Serial No. 299,950, I haveshown and described a group of mold-tubes to which the broad inventionis applied. In the present case I only Iu claim the specific deviceherein shown. the other application is claimed the broad invention of amolding apparatus provided at its bottom with an inlet communicatingWith the lower end of the mold and having a ring provided with a nozzle,whereby the composition may be admitted into the inlet, or the lattermay be closed.

Having described my invention, what I claim is- 1. An apparatus formaking a single printers roller, consisting of the mold-tube A, thejacket B, having the trunnions O O, the inlet M, and overflow N, therebeing a space b 'between the tube and the jacket, the removable bottomH, having the opening h the traveling ring Z around the bottom H, andhaving the nozzle 75, as set forth.

2. The conbination of the tube, its surrounding jacket, and thebase-plate of the latter, with the removable bottom having the flangeand seat within the tube and the lower spider resting on said seat, asset forth.

In testimony Whereof I affix my signature in presence of two witnesses.

LEANDER K. BINGHAM. Witnesses:

THos. IIOUGHTON, M. DORIAN.

